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1 111 f piece.

Specification of Letters Patent No. 26,363, dated December-6, 1859.1` ,3M 111 11 `To all whom it may concern:

Be it known that I, EDWINMAY, of In-1 di dianapolis, in the county of Marion and State of Indiana, have invented a new and 1" 5 `Improved Machine for Sanding `Painted c `Surfaces and Graveling Cemented or Plas` tered Walls; and I do hereby declare that 1 the following is a full and exact description jthereof, reference being had to the accom- `110 panying drawings and to the letters of reference marked thereon. y No. l is a perspective view of the ma- 1 chine with the tubing attached; N o. `2,1a

tached; No. 3, section lengthwise of the Ina- .l chine and tubing; No. 4;, adjustable mouth A is the y V current of air to bedischarged therefrom; C, hopper; D,`adjustable mouth piece; E, l. metal connection; F, fans; G, crank; H,

Q master wheel; I, revolving shaft; J, metal 1 tube to receive pipe or hopper; K, catch or 1 collar for spring; L, strap or holder; M, l spring; N, tubing or pipe; O,half plates to 3" regulate supply of material; P, cut off at {thebarrel or tank; Q, screen to keep tube or "l j pipe from choking up; R, slide to regulate supply of material from hopper; S, casing .130` inclosing air chamber; T, mouth of tube or pipe to be inserted in barrel containing the sand orgravel; U, cord to work out 0E and regulate the supply of material. p y; The nature of my invention consists in the forcing `ot sand on a painted surface, l and gravel 3 or pebbles on a cemented or .1 plastered surface, by means of a current of f@ air fromthe air chamber (A,) which is generated by the fans (F,) on the revolving `lysh`aft7(I,) said sand or gravelbeingsup per. (a) in er 1t 1s gen- (F,) and is being dis`-` 1 ,QM chargedfrom the chamber (A.,) through the l 1 pliedby the tube (N,) or ho 1 13 the line ofthe current of air a y erated by the fans conductor (13,) upon the painted or` oe-` entedsurface. 1 l 1 y The material to` be used, either sand or ravel, is placed `above the work as u on `the roof, or in the windows of the buildping NITED sTATEsPATENT 0F ICE fnow inserted in the connection and H side view or length section with hopper at-` preventthe tube (N,) from beingchoked up air chamber; B, conductor for tubing (n) is` inserted inf t1he"11`10`we1f par` of the barrel the` other endyofftubez `(NQ *isf kept in `its position bythe spring (M5) 311i collar (K,) while at the saine` time the tub ing is allowed to revolve.around",inf` order.. that the half lates (0,) mayoloseoneove the other and regulate `the`"`jsupplyqw Th sand will then be `conveyed downfithetuh `(l\T,) to the air conductor `(B,)"whentli current of air will forceit surface.

(U,) so that the tubing `(N,)"1nfay1iot"b y come overloaded, While thescrieen (QQ` will supply is regulated by `the fslidefR);`

1s machine 1s by insertmg:theleftfhandlwith# in theholder or strap (11,); 1and1with`the `produce the desired current of air, and `by which can be made at anycurve.orkangle jface, so that the surface lcoveredwill Ishow i'n spots or blotches as when dashed lmaterial overthe old method; M

to secure by Letters Patent is1jy` 1 AN or its` equivalent when constructedjandi Witnesses:

2 The manner of holding and `operating right hand turn the crankl-`(G,l`)`flwliiohwill means of the adjustable mouthpiece `1(D,)`

the material can be puton directlyoverhead or at right angles to the `operator.'l`he great advantage of this mode ,over the o method of dashing the sand `orfgravelfon b hand` is the steady and` continuouscurrent of air1 distributing the'sand or "gravel an equal andi forcible mannerfover 1the"su1 on by hand, and there is `agreatsavingof What I claim as my invention 1 1 The combination andyarrangementlofthef 1. blast fan F, in chamber 1A, conductorB, ade instable mouth piece D, withthee1astie`1tube` arranged substantially as `set 1 EDWN l andthe meal tube (n) attached to the J. w. Menara, l w. enum. 11 1 l; 

